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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2010.1
- 수록면
- 186 - 195 (10page)
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In most self-incompatible plant species, recognition of self-pollen is controlled by a single locus, termed the S-locus. The self-incompatibility (SI) system in Brassica is controlled sporophytically by multiple alleles at a single locus, designated as S, and involves cell-cell communication between male and female. Two highly polymorphic S locus genes, SLG (S locus glycoprotein) and SRK (S receptor kinase), have been identified, both of which are expressed predominantly in the stigmatic papillar cell. Gain-of-function experiments have demonstrated that SRK solely determines S haplotype-specificity of the stigma, while SLG enhances the recognition reaction of SI. The sequence analysis of the S locus genomic region of B. campestris (syn. rapa) has led to the identification of an anther-specific gene, designated as SP11/SCR, which is the male S determinant. Molecular analysis has demonstrated that the dominance relationships between S alleles in the stigma were determined by SRK itself, but not by the relative expression level. In contrast, the expression of SP11/SCR from the recessive S allele was specifically suppressed in the S heterozygote, suggesting that the dominance relationships in pollen were determined by the expression level of SP11/SCR. Furthermore, recent studies on recessive allele-specific DNA methylation of Brassica self-incompatibility alleles demonstrate that DNA methylation patterns in plants can vary temporally and spatially in each generation. In this review, we firstly present overview of self incompatibility system in Brassica and then describe dominance relationships in Brassica self- incompatibility regulated by allele-specific DNA methylation.
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참고문헌 (24)
참고문헌 신청
Bower MS / 1996 / Two members of the thioredoxin-h family interact with the kinase domain of a Brassica S locus receptor kinase / Plant Cell 8 : 1641 ~ 1650
Brace J / 1994 / A molecular approach to the identification of S-alleles in Brassica oleracea / Sex Plant Reprod 7 : 203 ~ 208
Cabrillaca D / 1999 / The S15 self-incompatibility haplotype in Brassica oleracea includes three S gene family members expressed in stigmas / Plant Cell 11 : 971 ~ 986
Chan SWL / 2005 / Gardening the genome; DNA methylation in Arabidopsis thaliana / Nat Rev Genet 6 : 351 ~ 360
Darwin C / 1876 / Effects of cross-and self-fertilization in the vegetable Kingdom / D Appleton
Brace J / 1994 / A molecular approach to the identification of S-alleles in Brassica oleracea / Sex Plant Reprod 7 : 203 ~ 208
Cabrillaca D / 1999 / The S15 self-incompatibility haplotype in Brassica oleracea includes three S gene family members expressed in stigmas / Plant Cell 11 : 971 ~ 986
Chan SWL / 2005 / Gardening the genome; DNA methylation in Arabidopsis thaliana / Nat Rev Genet 6 : 351 ~ 360
Darwin C / 1876 / Effects of cross-and self-fertilization in the vegetable Kingdom / D Appleton
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